The safe was actually an impressive antique “strong box” : 1.70 m high, 80 cm wide, 50 cm deep.
Presumably early XIX century. It has a wooden structure, a ca. 3 cm thick board, reinforced with iron straps and rivets.
Three large keyholes are visible. Their profile is very simple (not wavy or zig-zag), however they all require pipe keys – having a hollow shaft.